"Pray for the grace of accuracy." — Robert Lowell
From Snaith's pages 76 and 77 —
Compare and contrast . . .
Wikipedia on the numbers of cubies and facelets —
"The puzzle consists of 26 unique miniature cubes,
also known as 'cubies' or 'cubelets'."
"A 3 × 3 × 3 Rubik's Cube consists of 6 faces, each with
9 colored squares called facelets, for a total of 54 facelets."